Fig. 1: Nonlinear optoelectronic engine and its application.
From: Nonlinear optoelectronic engine drives monolithic integrated photonic computing
a Different driving modes of the PD + MRM engine, including direct drive, joint drive, differential drive, and cascade differential drive. The wavelength relay unit is depicted to demonstrate the operational principle of the PD + MRM engine. b The application of the PD + MRM engine in the optical Ising machine. J is the spin coupling matrix in an Ising problem. c The application of the PD + MRM engine in an optical recurrent neural network. Win is the weight matrix for the input vector, W is the feedback weight matrix for the hidden vector, and Wout is the weight matrix for the output
